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   <div id="projectname">gbmath
   &#160;<span id="projectnumber">v0.051</span>
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   <div id="projectbrief">c++ math library</div>
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<div class="title">perspective_projection_data.h</div>  </div>
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<a href="perspective__projection__data_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;﻿</div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="preprocessor">#ifndef __GBMATH_H__</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="preprocessor"></span><span class="preprocessor">    #error  DO NOT INCLUDE THIS FILE. USE:   #include &lt;gbmath/_gbmath.h&gt;</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="preprocessor"></span><span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="preprocessor"></span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;</div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160; </div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="keyword">namespace </span>gbmath</div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;{</div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;</div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;    </div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div>
<div class="line"><a name="l00022"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html">   22</a></span>&#160;      <span class="keyword">struct </span><a class="code" href="structgbmath_1_1perspective__projection__data.html" title="This data perspective projection. ">perspective_projection_data</a></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;      {</div>
<div class="line"><a name="l00024"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">   24</a></span>&#160;            <span class="keywordtype">float</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>;</div>
<div class="line"><a name="l00025"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">   25</a></span>&#160;            <span class="keywordtype">float</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>;</div>
<div class="line"><a name="l00026"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">   26</a></span>&#160;            <span class="keywordtype">float</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>;</div>
<div class="line"><a name="l00027"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">   27</a></span>&#160;            <span class="keywordtype">float</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>;</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160; </div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div>
<div class="line"><a name="l00030"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a43186b85b812ef28f421740a4a5768c4">   30</a></span>&#160;            <a class="code" href="structgbmath_1_1perspective__projection__data.html#a43186b85b812ef28f421740a4a5768c4">perspective_projection_data</a>()</div>
<div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;            {</div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a> = <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> = <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a> = <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a> = 0.0f;</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;            }</div>
<div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#ac30e967e8c63b41d340bc8232a483112">   35</a></span>&#160;            <a class="code" href="structgbmath_1_1perspective__projection__data.html#ac30e967e8c63b41d340bc8232a483112">perspective_projection_data</a>(<span class="keywordtype">float</span> _fovy, <span class="keywordtype">float</span> _aspect, <span class="keywordtype">float</span> _zn, <span class="keywordtype">float</span> _zf)</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;            {</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>   = _fovy;</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> = _aspect;</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>     = _zn;</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>     = _zf;</div>
<div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;            }</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#afaf40480347f809da49c945f92ab6b8e">   43</a></span>&#160;            <a class="code" href="structgbmath_1_1perspective__projection__data.html#afaf40480347f809da49c945f92ab6b8e">perspective_projection_data</a>(<span class="keyword">const</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html" title="This data perspective projection. ">perspective_projection_data</a>&amp; a)</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;            {</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>   = a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>;</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> = a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>;</div>
<div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>     = a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>;</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>     = a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>;      </div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;            }</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160; </div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160; </div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a7522bcf159425a7669f178ddb2d89b2f">   53</a></span>&#160;            <span class="keyword">inline</span> <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a7522bcf159425a7669f178ddb2d89b2f">makePerspectiveMatrixLH</a>()<span class="keyword"> const </span></div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;<span class="keyword">            </span>{</div>
<div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;                <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a> res;</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;                res.<a class="code" href="structgbmath_1_1mat44.html#a9b50c575bd5a266bf61946a013414a22">setPerspectiveFovLH</a>(<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>);</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;            }</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;</div>
<div class="line"><a name="l00060"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#ae7801bcae27e2befc914907a013a179a">   60</a></span>&#160;            <span class="keyword">inline</span> <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a> <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae7801bcae27e2befc914907a013a179a">makePerspectiveMatrixRH</a>()<span class="keyword"> const </span></div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">            </span>{</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;                <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a> res;</div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                res.<a class="code" href="structgbmath_1_1mat44.html#a3b8a3e86219b867d970cf7fbbe31628c">setPerspectiveFovRH</a>(<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>, <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>);</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                <span class="keywordflow">return</span> res;</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            }</div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160; </div>
<div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a15125a9d200fa82c964ba76ff4d7e2ed">   70</a></span>&#160;            <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a15125a9d200fa82c964ba76ff4d7e2ed" title="Extract the projection data of left-sided perspective of the matrix. ">extractProjPerspectLH</a>(<span class="keyword">const</span> <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a>&amp; mPerspectProjLH)</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;            {</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> = mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a51a6825aacf2e40c7f4c1774d4105d9a">_22</a>/mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#af3e99cb3e2fa6aeb124b9f27964f2003">_11</a>;</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>   = 2.0f  * atan(1.0f/mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a51a6825aacf2e40c7f4c1774d4105d9a">_22</a>);</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a> = -mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a47300a3aa5bb132868de2a94fe79d6e3">_43</a>/mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a5808bf751702b406781bf8d6e2a82408">_33</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;                <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a> =  mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a47300a3aa5bb132868de2a94fe79d6e3">_43</a>/(1.0f-mPerspectProjLH.<a class="code" href="structgbmath_1_1mat44.html#a5808bf751702b406781bf8d6e2a82408">_33</a>);</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;            }</div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a199f44f698b0a548357df469828fd16f">   78</a></span>&#160;            <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#a199f44f698b0a548357df469828fd16f">extractProjPerspectRH</a>(<span class="keyword">const</span> <a class="code" href="structgbmath_1_1mat44.html" title="matrix 4x4. ">mat44</a>&amp; mPerspectProjLH)</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;            {</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;                assert(<span class="keyword">false</span>);</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;                <span class="keywordflow">throw</span> std::runtime_error( <span class="stringliteral">&quot; none code &quot;</span>);</div>
<div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;            }</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div>
<div class="line"><a name="l00086"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#af924bc1896a2418538ef61547c220837">   86</a></span>&#160;            <span class="keyword">friend</span> std::ostream &amp;<a class="code" href="structgbmath_1_1perspective__projection__data.html#af924bc1896a2418538ef61547c220837">operator &lt;&lt; </a>(std::ostream &amp;stream, <span class="keyword">const</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html" title="This data perspective projection. ">perspective_projection_data</a>&amp; a)</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;            {</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                stream &lt;&lt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a> ;</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;                <span class="keywordflow">return</span> stream;</div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;            }</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div>
<div class="line"><a name="l00092"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a20a4993c10b48e15de3ce6360b534122">   92</a></span>&#160;            <span class="keyword">operator</span> std::string()<span class="keyword"> const</span></div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;<span class="keyword">            </span>{</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;                std::ostringstream ss;</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;                ss &lt;&lt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a> &lt;&lt; <span class="stringliteral">&quot; &quot;</span> &lt;&lt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a> ;</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;                <span class="keywordflow">return</span> ss.str();</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;            }</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#aef6eaed91e535d2d3f6837d572c786f8">   99</a></span>&#160;            <span class="keywordtype">void</span> <a class="code" href="structgbmath_1_1perspective__projection__data.html#aef6eaed91e535d2d3f6837d572c786f8">operator = </a>(<span class="keyword">const</span> std::string&amp; str) <span class="keywordflow">throw</span> (std::invalid_argument)</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;            {</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;                std::istringstream ss(str);</div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                ss &gt;&gt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>;</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                ss &gt;&gt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;                ss &gt;&gt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                ss &gt;&gt; <a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                <span class="keywordflow">if</span>( ss.fail() )</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;                    <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">&quot;bad input string&quot;</span>);</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;            }</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;</div>
<div class="line"><a name="l00111"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a71a3acb30a0898ee36e5a42731a68090">  111</a></span>&#160;            <span class="keyword">friend</span> std::istream &amp;<a class="code" href="structgbmath_1_1perspective__projection__data.html#a71a3acb30a0898ee36e5a42731a68090">operator &gt;&gt; </a>(std::istream &amp;stream, <a class="code" href="structgbmath_1_1perspective__projection__data.html" title="This data perspective projection. ">perspective_projection_data</a>&amp; a)</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;            {</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;                stream &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>;</div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;                stream &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                stream &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>;</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;                stream &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                <span class="keywordflow">return</span> stream;</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;            }</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div>
<div class="line"><a name="l00121"></a><span class="lineno"><a class="code" href="structgbmath_1_1perspective__projection__data.html#a0d9549ea2c0ed05f86797a013f1db3b9">  121</a></span>&#160;            <span class="keyword">friend</span> std::istringstream &amp;<a class="code" href="structgbmath_1_1perspective__projection__data.html#a71a3acb30a0898ee36e5a42731a68090">operator &gt;&gt; </a>(std::istringstream &amp;ss, <a class="code" href="structgbmath_1_1perspective__projection__data.html" title="This data perspective projection. ">perspective_projection_data</a>&amp; a)</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            {</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                ss &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2d44450d34e2cb68c0534ddb7b385726">fovy</a>;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;                ss &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a946f5103784e5d00c90b2bcc86cfb817">aspect</a>;</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;                ss &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#a2f7dcc2ac8c2e2a47ccab07d86824ed9">zn</a>;</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;                ss &gt;&gt; a.<a class="code" href="structgbmath_1_1perspective__projection__data.html#ae07666d6553dcf8958bf94c752833556">zf</a>;</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                <span class="keywordflow">return</span> ss;</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;            }</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;      };</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;}</div>
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